Bag making machine



y 0, 1966 H. E. KASTlNG 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet 1 INTER/VAL MA/VD/PEL Clamping roll carriage.

$72lT/0N Spread open flaps inserl valve film primary seal.

Blanking, form 8 seal bottom 8 transfer through movable clamp.

flaps heal seal lop closure.

During 90 index withdrq Transfer finished bollom,

lension length control 57-4770 7 slrip internal hinged leaves Clamping platens from bottom closure. open discharge finished bag.

INVENTOR. HOWARD E. KASTING p/M. 7 W

ATTORNEY y 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet 2 INVENTOR. HOWARD E. KASTI NG BY i /% ATTORNEY May 10, 1966 H. E. KASTING BAG MAKING MACHI NE Filed June 26, 1963 heats-Sheet 5 HOWARD E. KASTING A TTORNE Y y 1966 H. E. KASTING 3,250,187

BAG MAK ING MACHINE Filed June 26, 1963 28 Sheets-Sheet 4 FIG. 5

INVENTOR. HOWARD E. KASTING M J M ATTORNEY y 0, 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet I} ELL/2 Hi f; (22 g"; *22 F/G.6 g3 Fla? 5;

INVENTOR HOWARD E. KASTING ATTORNEY May 10, 1966 H. E. KASTING BAG MAKING MACHINE 28 Sheets-Sheet 6 Filed June 26, 1963 V/AV N INVENTOR. HOWARD E. KASTING BY J)- ATTORNEY May 10, 1966 Filed June 26, 1963 H. E. KAST ING BAG MAKING MACHINE 28 Sheets-Sheet '7 INVENTOR. HOWARD E. KASTING A TTORNE Y y 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE 28 Sheets-Sheet 8 Filed June 26, 1963 IHWI STA r/a/v 17 INVENTOR. HOWARD E. KASTING ATTORNEY y 1966 H., E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet 9 FIG. /5

am now 7 INVENTOR HOWARD E. KASTING ATTORNEY y 9 E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 r 28 Sheets-Sheet 10 FIG. /9b

INVENTOR. HOWARD E. KASTING EMA ATTORNEY y 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1965 28 Sheets-Sheet 11 INVENTOR. HOWARD E. KASTING ATTORNEY May 10, 1966 Filed June 26, 1963 H. E. KASTING BAG MAKING MACHINE 28 Sheets- Sheet 12 FIG. 22 g IW' 52 "NH" 32 5'6 22 24 4/ f-f j 3; 38

:EWE! Z8 W ,4: 40

i A I /24 g g s o 60 6 a 26 I 72 1 28 so; 578

1 5i? 5% i W IN f iii" MINI T HM?" INVENTOR. HOWARD E. KASTING BY 2 ATTORNEY May 10, 1966 H. E. KASTING BAG MAKING MACHINE 28 Sheets-Sheet 15 Filed June 26, 1963 I ENTOR. HOWA E KASTING 2%" ATTORNEY y 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1965 28 Sheets-Sheet 14 FIG. 23

INVENTOR. HOWARD E. KASTING WQM ATTORNEY y 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet 15 50 306 AIR 9 304 I H632 309 lll FIG. 25

INVENTOR. HOWARD E. KASTING MAM A TTORNEY May 10, 1966 H. E. KASTING BAG MAKING MACHINE 28 Sheets-Sheet 16 Filed June 26, 1963 T R Y on E TK N ma m m M A y 0, 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet l7 INVENTOR. HOWARD E. KASTING JM/Z / A TTOR/VEY May 10, 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet 18 FIG. 26b

- CUTTING POSITION FIG. 28

INVENTOR. HOWARD E. KASTI NG ATTORNEY y 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet l9 5 TA L INVENTOR.

HOWARD E. KASTING A TTORNE Y y 1966 H. E. KASTING 3,250,187

BAG MAKING MACHINE Filed June 26, 1963 28 Sheets-Sheet 20 FIG. 30

INVENTOR. HOWARD E. KASTING BY I w Ml V/ MW ATTORNEY 

25. APPARATUS FOR MAKING A BAG HAVING RECTANGULAR HEAT-SEALED END CLOSURES FROM FLATTENED TUBULAR THERMOPLASTIC FILM, WHICH APPARATUS COMPRISES: (A) A MOVABLE INDEXING TABLE HAVING MOUNTED THEREON A PLURALITY OF CLAMPING PLATEN-FOLDOVER ROLL ASSEMBLIES; (B) MEANS FOR INDEXING SAID TABLE AT A FIRST STATION HAVING AN INTERNAL MANDREL ADAPTED TO FIT WITHIN SAID FLATTENED TUBULAR FILM, MEANS FOR DISPOSING SAID MANDREL WITHIN SAID FILM, MEANS FOR DISPOSING A PAIR OF OPPOSED SIDE PORTIONS AND A PAIR OF OPPOSED END PORTIONS AT ONE END OF SAID FILM OVER SAID MANDREL SO AS TO FORM A FIRST RECTANGULAR END CLOSURE, MEANS FOR HEAT SEALING SAID INFOLDED SIDE AND END PORTIONS TOGETHER SO AS TO SEAL SAID END CLOSURE, AND MEANS FOR POSITIONING SAID FILM WITHIN SAID CLAMPING PLATENFOLDOVER ROLL ASSEMBLY ON SAID TABLE WITH THE OPEN END OF SAID FILM PROTRUDING ABOVE THE SURFACE OF SAID CLAMPING PLATEN; (C) MEANS FOR INDEXING SAID TABLE AT A SECOND STATION HAVING MEANS FOR FORMING A PAIR OF OPPOSED OUTFOLDED SIDE PORTIONS AND A PAIR OF OPPOSED INFOLDED END PORTIONS IN SAID OPEN END OF SAID FLATTENED TUBULAR FILM, SHUTTLE MEANS FOR INSERTING A VALVE SHEET ACROSS SAID OUTFOLDED SIDE PORTIONS AND IN OVERLAPPING RELATIONSHIP WITH A FIRST INFOLDED END PORTION, MEANS FOR JOINING SAID VALVE SHEET TO SAID FIRST END PORTION; (D) A MOVABLE FORMING PLATEN AND MEANS FOR INSERTING SAID FORMING PLATEN OVER SAID FIRST INFOLDED END PORTION AND THE MIDDLE OF SAID VALVE SHEET AND UNDER THE SECOND INFOLDED END PORTION; (E) MEANS FOR INDEXING SAID TABLE AT A THIRD STATION HAVING MEANS FOR ACTUATING SAID FOLDOVER ROLLS ON SAID ASSEMBLY TO INFOLD SAID OUTFOLDED SIDE PORTIONS AND THE END PORTIONS OF SAID VALVE SHEET OVER SAID FORMING PLATEN INTO OVERLAPPING RELATIONSHIP WITH EACH OTHER AND SAID END PORTIONS, AND MEANS FOR HEAT SEALING THE OVERLAPPING SIDE PORTIONS, VALVE SHEET, AND SAID SECOND END PORTION TOGETHER IN THE OVERLAPS TO FORM A VALVED END CLOSURE; (F) MEANS FOR WITHDRAWING SAID FORMING PLATEN FROM SAID VALVED END CLOSURE; AND (G) MEANS FOR INDEXING SAID TABLE AT A FOURTH STATION HAVING MEANS FOR OPENING SAID CLAMPING PLATEN ON SAID TABLE TO DISCHARGE THE FINISHED BAG THEREFROM. 